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Latest H12-831_V1.0-ENU Exam Dumps Questions
The dumps for H12-831_V1.0-ENU exam was last updated on Aug 01,2025 .
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In the network shown in the figure, R1, R2, R4, and R5 run IS-IS in area 49.0001, and R3 and R6 run IS-IS in area 49.0002. Within AS 65000, R1, R3, R4, and R6 establish IBGP neighbor relationships with R2 and R5, of which R2 and R5 are RRs and R1, R4, R3, and R6 are clients. IBGP neighbor relationships are all established using the Loopback0 interface. The IP address of the Loopback0 interface of each device is 10.0.X.X/32, and the Router ID is 10.0.X.X, where X is the device number. R1 and R4 introduce the external network 192.168.1.0/24 into BGP through import, and R3 and R6 introduce the external network 192.168.2.0/24 into BGP through import. Which of the following descriptions are correct by default? (Multiple choice)
On the IS-IS IPv6 network shown in the figure, multi-topology is enabled on all routers. The ipv6 default-route-advertise always level-1 command is configured in the IS-IS process of R4. Which of the following routers does not have the default route in its routing table?
Explanation: Comprehensive and Detailed In-Depth Understanding the IS-IS Network Structure in the Question: IS-IS Area IDs and Router Roles Area 49.0001 (Level-1-2): Contains R1, R2, R4 (all Level-1-2 routers). Area 49.0002 (Level-1-2 & Level-1): Contains R3 (Level-1-2) and R5 (Level-1 only). Key Command Used: ipv6 default-route-advertise always level-1 This command forces R4 to advertise a default route (::/0) to all Level-1 routers within its area. Only Level-1 routers in the same area as R4 will receive the default route. Level-2 routers do not receive or propagate this default route unless additional configuration is done. Route Distribution Analysis: R4 (Level-1-2) is configured to advertise a default route to Level-1 routers. R1 and R2 (both Level-1-2) are in the same area (49.0001) as R4, so they receive the default route. R3 (Level-1-2) is in area 49.0002 but connects to R4 (49.0001), meaning it can receive the default route through its Level-1 connection. R5 (Level-1 only) is in area 49.0002, but R4 does not propagate the default route to another Level-1 area (49.0002). Since R5 is a Level-1 router and does not have a Level-2 connection, it cannot receive the default route from R4. Final Conclusion: ✅ R1 receives the default route. ✅ R2 receives the default route. ✅ R3 receives the default route. ❌ R5 does NOT receive the default route. Thus, the correct answer is: C. R5. Reference: HCIP-Datacom-Advanced Routing & Switching Technology V1.0 C IS-IS Multi-Topology and IPv6 Routing Huawei Official HCIP-Datacom Study Guide C IS-IS Default Route Advertisement for Level-1 and Level-2 Areas Huawei Documentation on ipv6 default-route-advertise always level-1 Command Behavior
Which of the following reasons may cause the local device to be unable to learn the ARP information of the other device? (Multiple choice)
In the OSPF network shown in the figure, if the cost levels of the links are the same, load sharing is selected. If R1 turns on OSPF IP FRR, the main path for R1 to reach 10.0.3.3/32 is R1-R2-R3, and the backup path is R1-R4-R2-R3.
OSPF neighbors periodically send Hello messages to establish and maintain adjacency, and the interval of the Hello timer must be consistent, otherwise the adjacency cannot be established. In order to accelerate OSPF convergence, network engineers can set the interval of the Hello message to 1ms.
Exam Code: H12-831_V1.0-ENU Q & A: 450 Q&As Updated: Aug 01,2025
